Grassberg Vitamin D3 – 4,000 IU, Unflavoured

Grassberg Vitamin D3 4000IU

This formulation contains 100 micrograms (4000IU) cholecalciferol per daily dose, corresponding to 2000% of the European Nutrient Reference Value. The product is developed by Grassberg, a well-known supplier of dietary supplements, and is offered in a neutral, flavourless variant that is easy to integrate into your daily routine. With gelatin as the capsule material and glycerol as a humectant, this is a simple and effective way to ensure adequate D3 supply year-round.

Active Ingredients & Science

Vitamin D3 (Cholecalciferol) – 4000IU per dose

Vitamin D3, also known as cholecalciferol, is the most biologically active form of vitamin D and the form the body naturally produces when the skin is exposed to sunlight. In this formulation, 4000IU (100 micrograms) is delivered per daily dose, which is a potent amount far exceeding the minimal daily requirement for most adults.

Cholecalciferol is a fat-soluble vitamin absorbed in the small intestine and transported to the liver, where it is converted to 25-hydroxyvitamin D, the form used to measure the body's D3 status.

Vitamin D3 plays a central role in several physiological processes.

The high dose of 4000IU makes this product particularly suitable for people living at high latitudes, with limited sun exposure, or who need a powerful supplement to maintain optimal D3 levels during darker seasons. Cholecalciferol is also the form preferred by many researchers for supplementation because it is the most stable and has the longest half-life in the body.

Gelatin (Capsule Material)

The capsule is made from gelatin, a classic and well-established capsule material that has been used in the dietary supplement industry for decades. Gelatin is a protein-rich substance that is easy to digest in the gastrointestinal tract and allows rapid release of the active content. Gelatin is also hypoallergenic for most people and offers a stable, long-lasting storage solution for sensitive ingredients such as vitamin D3.

Glycerol (Humectant)

Glycerol is a naturally occurring polyol that acts as a humectant in this formulation. It helps maintain optimal moisture within the capsule, ensuring that vitamin D3 remains stable and potent throughout the product's shelf life. Glycerol is also well tolerated by the body and is easily absorbed in the small intestine.

Benefits & Uses

Support for Bone Health and Strength

Vitamin D3 is one of the most important nutrients for long-term bone health.

Muscle Function and Mobility

This 4000IU formulation provides a powerful dose to support optimal muscle function.

Support for Normal Calcium and Phosphate Balance

Without adequate D3, the body cannot absorb calcium effectively from food, even if you consume sufficient amounts. Consistent D3 supply ensures this critical balance is maintained.

Support for Cell Health and Normal Cell Division

Vitamin D3 plays a role in normal cell division and cell differentiation. This is one reason why vitamin D3 is so essential for long-term health and wellbeing.

Quality & Manufacturing

Grassberg is an established manufacturer of dietary supplements known for its focus on quality and purity. This vitamin D3 formulation is made with gelatin as the capsule material, which is a well-established and well-tolerated material that has been used in the supplement industry for many years.

The product contains soybean as an ingredient, which is important to note for people with soy allergy or sensitivity. Glycerol is used as a humectant to ensure that vitamin D3 remains stable and potent during storage. This combination of ingredients is designed to provide a stable, long-lasting product that retains its potency over time.

Vitamin D3 in this formulation is cholecalciferol, the most biologically active and well-studied form of vitamin D. This is the form the body naturally produces and which many health professionals prefer for supplementation due to its efficacy and stability.

The product is designed for easy daily use with a neutral, flavourless profile that makes it simple to integrate into your daily routine without affecting the taste of food or drink.

Who is the product suitable for?

People with Limited Sun Exposure

If you live at high latitudes, work indoors most of the day, or live in a climate with low sun intensity for many months of the year, this vitamin D3 formulation is particularly relevant for you. Sunlight is the primary source of vitamin D3 for most people, but geographic location, season, and lifestyle can dramatically limit this natural production. A high-dose supplement like this can help fill this gap.

Older Adults and People with Bone Weakness

This high dose of 4000IU can be particularly valuable for this group.

Active Individuals and Athletes

Vitamin D3 plays a role in muscle function and muscle recovery, making it relevant for active people and athletes. Many athletes use vitamin D3 supplements as part of their training and nutrition strategy.

Vegans and Vegetarians

Vitamin D3 from animal-based sources (such as fish and eggs) is often limited in vegetarian and vegan diets. This Grassberg product uses gelatin as the capsule material, which is worth noting for vegans. For vegetarians who accept gelatin, this can be a practical way to ensure adequate D3 supply.

People with Limited Intake of D3-Rich Foods

Vitamin D3 naturally occurs in a limited number of foods, primarily fatty fish, egg yolk, and fortified milk. If your diet is limited in these foods, or if you follow a restrictive diet for other reasons, a supplement like this can be a practical way to ensure adequate D3 supply.

Summary

With 100 micrograms (4000IU) cholecalciferol per dose, this product offers a potent amount of this essential vitamin in a simple, flavourless capsule form.

Vitamin D3 is one of the most important nutrients for bone health, immune function, muscle function, and normal cell division. This high dose makes it particularly suitable for people with limited sun exposure, older adults, active individuals, and anyone wanting to ensure optimal D3 levels year-round.

Formulated with gelatin as the capsule material and glycerol as a humectant, this product is designed for stability, potency, and easy daily use. Grassberg is an established manufacturer known for its focus on quality, making this vitamin D3 formulation a reliable choice for long-term D3 supply.